Smallest, lowest power battery mgmt solution targets wearables

The bq25120 battery management solution provides the industry’s lowest quiescent current (Iq) at 700-nA with the buck converter, operating at 1.8 V. It features an integrated linear charger, configurable LDO, load switch, buck converter, pushbutton control and battery voltage monitor. The solution supports batteries from 3.6 to 4.65-V, and fast charge currents from 5-mA to 300-mA, allowing wearables and industrial Internet of Things (IoT) applications to always be on without draining the battery.

The battery management solution maintains an always-on 1.8-V operation using power path technology and a low Iq buck converter. A host microprocessor or Bluetooth radio, are able to continue running during recharging and can the device can provide a long battery shelf-life because the solution has a standby mode quiescent current of 50-nA. The 2.5 x 2.5-mm WCSP package enables a small footprint making it easier for designers to integrate it into sleek wearable designs. For an even more robust solution, designers can incorporate the CC2640 wireless MCU as it is the industry’s smallest QFN package solution with integrated Flash for Bluetooth Smart.